package com.evildog.workspace.common.util;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.lang.NonNull;
import org.springframework.stereotype.Component;

@Component
public class SpringContextHolder implements ApplicationContextAware {

    private static ApplicationContext appContext = null;

    /**
     * 通过class获取Bean.
     */
    public static <T> T getBean(Class<T> clazz) {
        return appContext.getBean(clazz);
    }

    /**
     * 通过name,以及Clazz返回指定的Bean
     */
    public static <T> T getBean(String name, Class<T> clazz) {
        return appContext.getBean(name, clazz);
    }

    @Override
    public void setApplicationContext(@NonNull ApplicationContext applicationContext) throws BeansException {
        if (appContext == null) {
            appContext = applicationContext;
        }
    }
}
